Best way to get your ex girlfriend back fast. If you've already put her through that once, DO NOT take her back unless you're certain you will not put her through it again. Then he said there is nothing between them. Of course this sounds very strange to many people but it will only take you several seconds to hear us out. Leave out the part about wanting your ex back, though. For your reference, here is a list of common behaviors that women with traits of BPD may engage in while in a romantic relationship:. Push yourself to move on to more constructive behaviors whenever you're able. Be classy and kind. He said some day he hopes we can cross paths again when the timing is right.